Box blank



FIG. 1 is a plan view of a box blank, showing our new design, the opposite side thereof being a mirror image thereof;

FIG. 2 is an end view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a side view thereof, from the side opposite that shown in FIG. 3; and,

FIG. 5 is an end view showing the end opposite that shown in FIG. 2. 

The ornamental design for a box blank, as shown and described. 